/* =========================================================
   Design tokens — 临床可信的深空医疗科技
   改风格只动这里，业务样式引用变量
   ========================================================= */
:root {
  /* Color */
  --bg: #060a12;
  --bg-elevated: #0a1220;
  --surface: #0d1626;
  --surface-raised: #101c30;
  --text: #e8eef6;
  --muted: #8a9bb0;
  --accent: #5ec8ff;
  --accent-ink: #041018;
  --accent-soft: rgba(94, 200, 255, 0.12);
  --teal: #2dd4bf;
  --line: rgba(148, 180, 210, 0.16);
  --line-strong: rgba(148, 180, 210, 0.28);
  --nav-bg: rgba(6, 10, 18, 0.55);
  --nav-bg-solid: rgba(6, 10, 18, 0.92);
  --panel-bg: #0b1422;
  --footer-bg: #04080f;

  /* Type */
  --font-display: "Syne", sans-serif;
  --font-body: "Manrope", sans-serif;
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-md: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.35rem;
  --text-2xl: clamp(1.75rem, 3.5vw, 2.35rem);
  --text-3xl: clamp(2rem, 5vw, 3.25rem);
  --text-hero: clamp(2.8rem, 7vw, 4.5rem);
  --leading-tight: 1.15;
  --leading-body: 1.6;
  --tracking-tight: -0.03em;
  --tracking-label: 0.1em;

  /* Space (8px grid) */
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 48px;
  --space-6: 64px;
  --space-7: 96px;
  --space-8: 120px;

  /* Shape */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-panel: 10px;

  /* Motion */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --dur-fast: 120ms;
  --dur: 200ms;
  --dur-slow: 300ms;

  /* Layout */
  --max: 1200px;
  --nav-h: 72px;
  --nav-h-scrolled: 64px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--text-md);
  line-height: var(--leading-body);
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, .btn { font-family: inherit; cursor: pointer; }

.wrap {
  width: min(100% - var(--space-5), var(--max));
  margin-inline: auto;
}

/* NAV */
.site-nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  background: var(--nav-bg);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition:
    height var(--dur) var(--ease),
    background var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}
.site-nav.scrolled {
  height: var(--nav-h-scrolled);
  background: var(--nav-bg-solid);
  border-bottom-color: var(--line);
}
.site-nav .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(100% - var(--space-5), var(--max));
}
.logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  transition: font-size var(--dur) var(--ease);
}
.site-nav.scrolled .logo { font-size: 1.1rem; }
.logo span { color: var(--accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links > li { position: relative; }
.nav-links > li > a,
.nav-parent {
  font-size: var(--text-sm);
  color: var(--muted);
  transition: color var(--dur-fast) var(--ease);
  padding: 10px 12px;
}
.nav-links > li > a:hover,
.nav-parent:hover,
.has-sub.open > .nav-parent {
  color: var(--text);
}
.nav-parent {
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.nav-parent::after {
  content: "";
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 4px solid currentColor;
  opacity: 0.65;
  transition: transform var(--dur-fast) var(--ease);
}
.has-sub.open > .nav-parent::after,
.has-sub:hover > .nav-parent::after {
  transform: rotate(180deg);
}

.sub-menu {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  margin: 0;
  padding: var(--space-1);
  list-style: none;
  background: var(--panel-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-panel);
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.4);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition:
    opacity var(--dur-fast) var(--ease),
    transform var(--dur-fast) var(--ease),
    visibility var(--dur-fast);
  z-index: 120;
}
.sub-panel { min-width: 260px; }
.has-sub:hover > .sub-menu,
.has-sub:focus-within > .sub-menu,
.has-sub.open > .sub-menu {
  opacity: 1;
  visibility: visible;
  transform: none;
}
.sub-menu a {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  color: var(--muted);
  transition: background var(--dur-fast), color var(--dur-fast);
}
.sub-title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text);
}
.sub-desc {
  font-size: var(--text-xs);
  color: var(--muted);
  line-height: 1.4;
}
.sub-menu a:hover {
  background: var(--accent-soft);
}
.sub-menu a:hover .sub-title { color: var(--accent); }

.nav-cta {
  display: inline-flex;
  align-items: center;
  padding: 10px 18px !important;
  margin-left: var(--space-1);
  background: var(--accent);
  color: var(--accent-ink) !important;
  font-weight: 600;
  font-size: var(--text-sm);
  border-radius: var(--radius-sm);
  transition: transform var(--dur-fast) var(--ease), box-shadow var(--dur) var(--ease);
}
.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(94, 200, 255, 0.25);
}
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  color: var(--text);
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  font-size: 1.2rem;
  cursor: pointer;
}

/* HERO */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: flex-end;
  padding: calc(var(--nav-h) + 48px) 0 72px;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-photo {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 70% center;
  filter: saturate(0.85) brightness(0.72);
}
#brainCanvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  mix-blend-mode: screen;
  opacity: 0.85;
}
.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(90deg, rgba(6,10,18,0.94) 0%, rgba(6,10,18,0.62) 42%, rgba(6,10,18,0.28) 100%),
    linear-gradient(180deg, transparent 45%, var(--bg) 100%);
  pointer-events: none;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 560px;
  animation: rise 0.9s ease both;
}
.hero-brand {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.8rem, 7vw, 4.5rem);
  line-height: 0.95;
  letter-spacing: -0.04em;
  margin: 0 0 20px;
}
.hero-brand em {
  font-style: normal;
  color: var(--accent);
}
.hero-lead {
  font-size: 1.125rem;
  color: var(--muted);
  margin: 0 0 32px;
  max-width: 42ch;
}
.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 24px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  transition: transform var(--dur-fast) var(--ease), background var(--dur), border-color var(--dur);
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
}
.btn-primary:hover { box-shadow: 0 12px 32px rgba(94, 200, 255, 0.28); }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--line);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn-lg { padding: 18px 32px; font-size: 1.05rem; }

@keyframes rise {
  from { opacity: 0; transform: translateY(28px); }
  to { opacity: 1; transform: translateY(0); }
}

/* TRUST */
.trust {
  padding: 48px 0 64px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(94,200,255,0.06), transparent);
}
.trust-label {
  text-align: center;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 28px;
}
.logo-wall {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 16px 40px;
  margin-bottom: 40px;
}
.logo-wall span {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  color: rgba(232, 238, 246, 0.35);
  letter-spacing: -0.02em;
  transition: color 0.25s;
}
.logo-wall span:hover { color: rgba(232, 238, 246, 0.7); }
.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}
.stat strong {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.03em;
}
.stat span {
  font-size: 0.875rem;
  color: var(--muted);
}

/* SECTIONS */
.section { padding: 96px 0; }
.section-head {
  margin-bottom: 48px;
  max-width: 520px;
}
.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.35rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin: 0 0 12px;
  line-height: 1.15;
}
.section-head p {
  margin: 0;
  color: var(--muted);
}
.eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 10px;
  font-weight: 600;
}
.text-block {
  max-width: 68ch;
  color: var(--muted);
}
.text-block p { margin: 0; }

/* Media */
.media-split {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: var(--space-5);
  align-items: center;
}
.media-split .section-head { margin-bottom: var(--space-3); }
.media-frame {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--surface);
}
.media-frame img {
  width: 100%;
  height: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  display: block;
}
.media-frame figcaption {
  padding: 12px 16px;
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--muted);
  border-top: 1px solid var(--line);
  background: var(--surface);
}
.feature-media {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}
.feature-media .media-frame img { aspect-ratio: 4 / 3; }

.flow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.node {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.node strong {
  font-family: var(--font-display);
  font-size: 1rem;
}
.node span {
  color: var(--muted);
  font-size: 0.875rem;
}
.roadmap {
  margin: 0;
  padding: 0;
  list-style: none;
  max-width: 640px;
}
.roadmap li {
  padding: 18px 0 18px 20px;
  border-left: 2px solid var(--line);
  color: var(--muted);
}
.roadmap li + li { border-top: 1px solid var(--line); }
.roadmap strong { color: var(--accent); }
.team-grid,
.resource-grid,
.price-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.team-card,
.resource-card,
.price-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 28px 24px;
}
.team-card h3,
.resource-card h3,
.price-card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin: 0 0 8px;
  letter-spacing: -0.02em;
}
.team-card p,
.resource-card p,
.price-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}
.resource-card .btn { margin-top: 18px; }
.price-card.featured {
  border-color: rgba(94, 200, 255, 0.45);
  background: linear-gradient(160deg, #101c30, var(--surface));
}
.price {
  font-family: var(--font-display);
  font-size: 1.35rem !important;
  color: var(--accent) !important;
  margin: 0 0 10px !important;
}
.list-block {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--line);
}
.list-item {
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}
.list-item time {
  display: block;
  font-size: 0.8rem;
  color: var(--accent);
  margin-bottom: 6px;
}
.list-item h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin: 0 0 8px;
  letter-spacing: -0.02em;
}
.list-item p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}
.glossary {
  margin: 0;
  border-top: 1px solid var(--line);
}
.glossary > div {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 20px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}
.glossary dt {
  font-weight: 700;
  color: var(--text);
}
.glossary dd {
  margin: 0;
  color: var(--muted);
}
.inline-cta { margin: 28px 0 0; }
.inline-cta a {
  color: var(--accent);
  font-weight: 600;
}
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.in {
  opacity: 1;
  transform: none;
}

/* CAPABILITIES */
.cap-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
}
.cap-item {
  background: var(--surface);
  padding: 32px 28px;
  transition: background 0.25s;
}
.cap-item:hover { background: #101c30; }
.cap-item h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  margin: 0 0 8px;
  letter-spacing: -0.02em;
}
.cap-item p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}
.section-tight { padding-top: 0; }
.section-alt {
  background: var(--bg-elevated);
  border-block: 1px solid var(--line);
}

/* SOLUTIONS */
.sol-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.sol-card {
  position: relative;
  display: block;
  min-height: 280px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  transition: border-color 0.25s, transform 0.25s;
}
.sol-photo {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s var(--ease);
}
.sol-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(6,10,18,0.15) 0%, rgba(6,10,18,0.88) 72%);
  z-index: 0;
}
.sol-body {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 280px;
  padding: 28px 24px;
}
.sol-card:hover {
  border-color: rgba(94, 200, 255, 0.4);
  transform: translateY(-4px);
}
.sol-card:hover .sol-photo { transform: scale(1.04); }
.sol-card h3 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  margin: 0 0 10px;
  letter-spacing: -0.02em;
}
.sol-card p {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 0.95rem;
}
.sol-card .arrow {
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--accent);
}

/* CASES */
.case-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.case-item {
  padding: 0 0 0 24px;
  border-left: 2px solid var(--accent);
}
.case-tag {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}
.case-item h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  margin: 0 0 10px;
  letter-spacing: -0.02em;
}
.case-item p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

/* ABOUT */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}
.about-grid .section-head { margin-bottom: 0; }
.about-copy p {
  margin: 0 0 16px;
  color: var(--muted);
}
.about-role {
  color: var(--text) !important;
  font-size: 0.95rem;
}

/* CONTACT FORM */
.contact-form {
  max-width: 640px;
  margin: 0 auto;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.contact-form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.contact-form input,
.contact-form select,
.contact-form textarea {
  padding: 12px 14px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: rgba(6, 10, 18, 0.65);
  color: var(--text);
  font-size: 1rem;
  font-family: inherit;
  text-transform: none;
  letter-spacing: normal;
  font-weight: 400;
}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: 1px solid var(--accent);
  border-color: var(--accent);
}
.form-actions { margin-top: 8px; }
.form-note {
  margin: 4px 0 0;
  font-size: 0.875rem;
  color: var(--accent);
  text-align: center;
}

/* FAQ */
.faq-list {
  max-width: 720px;
  border-top: 1px solid var(--line);
}
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item summary {
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 22px 0;
  font-weight: 600;
  font-size: 1.05rem;
  cursor: pointer;
  transition: color 0.2s;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--accent); }
.faq-item summary::after {
  content: "+";
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--muted);
  flex-shrink: 0;
}
.faq-item[open] summary::after {
  content: "\2212";
  color: var(--accent);
}
.faq-item .answer {
  padding: 0 0 22px;
  color: var(--muted);
  font-size: 0.95rem;
  max-width: 58ch;
}

/* FINAL CTA */
.final-cta {
  position: relative;
  padding: 120px 0;
  text-align: center;
  overflow: hidden;
}
.final-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 80% at 50% 100%, rgba(94,200,255,0.18), transparent 60%),
    linear-gradient(180deg, var(--bg) 0%, #0a1528 100%);
  z-index: 0;
}
.final-cta .wrap { position: relative; z-index: 1; }
.final-cta h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  margin: 0 0 16px;
  line-height: 1.1;
}
.final-cta p {
  color: var(--muted);
  margin: 0 auto 36px;
  max-width: 40ch;
  font-size: 1.1rem;
}
.final-cta .cta-row { justify-content: center; }

/* FOOTER */
.site-footer {
  padding: var(--space-7) 0 var(--space-5);
  border-top: 1px solid var(--line);
  background: var(--footer-bg);
}
.footer-top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding-bottom: var(--space-5);
  margin-bottom: var(--space-5);
  border-bottom: 1px solid var(--line);
}
.footer-brand .logo {
  display: inline-block;
  margin-bottom: var(--space-1);
}
.footer-brand p {
  color: var(--muted);
  font-size: var(--text-sm);
  margin: 0;
  max-width: 32ch;
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}
.footer-col h4 {
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 var(--space-2);
  font-weight: 600;
}
.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.footer-col li { margin-bottom: 10px; }
.footer-col a {
  font-size: var(--text-sm);
  color: var(--text);
  opacity: 0.72;
  transition: opacity var(--dur-fast), color var(--dur-fast);
}
.footer-col a:hover { opacity: 1; color: var(--accent); }
.footer-contact li {
  font-size: var(--text-sm);
  color: var(--muted);
}
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  padding-top: var(--space-3);
  border-top: 1px solid var(--line);
  font-size: var(--text-xs);
  color: var(--muted);
}
.footer-legal {
  display: flex;
  gap: var(--space-3);
}
.footer-legal a {
  color: var(--muted);
  transition: color var(--dur-fast);
}
.footer-legal a:hover { color: var(--text); }

/* RESPONSIVE */
@media (max-width: 1100px) {
  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    max-height: calc(100vh - var(--nav-h));
    overflow-y: auto;
    background: var(--nav-bg-solid);
    padding: var(--space-2) var(--space-3) var(--space-4);
    gap: 2px;
    border-bottom: 1px solid var(--line);
  }
  .nav-links > li > a,
  .nav-parent {
    width: 100%;
    justify-content: space-between;
    padding: 14px 4px;
  }
  .sub-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    display: none;
    border: none;
    background: transparent;
    box-shadow: none;
    padding: 0 0 var(--space-1) var(--space-2);
    min-width: 0;
  }
  .has-sub.open > .sub-menu { display: block; }
  .sub-menu a { padding: 10px 8px; }
  .nav-cta {
    margin: var(--space-2) 0 0;
    justify-content: center;
  }
  .nav-toggle { display: flex; align-items: center; justify-content: center; }
  .cap-grid,
  .sol-grid,
  .case-grid,
  .team-grid,
  .resource-grid,
  .price-grid,
  .flow,
  .media-split,
  .feature-media { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr; gap: var(--space-3); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .glossary > div { grid-template-columns: 1fr; gap: 6px; }
  .hero-bg::after {
    background: linear-gradient(180deg, rgba(6,10,18,0.4) 0%, rgba(6,10,18,0.85) 55%, var(--bg) 100%);
  }
  .hero-content { max-width: 100%; }
}
@media (max-width: 560px) {
  .wrap { width: min(100% - var(--space-4), var(--max)); }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-top { align-items: flex-start; flex-direction: column; }
  .section { padding: var(--space-6) 0; }
  .final-cta { padding: var(--space-7) 0; }
}